Call back verification failed on Facebook

[fidjez]

I follow every step but when I put the callback URL and Verify Token I have an error message : the url couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 503; HTTP Message = Service Unavailable.

There is a way to fix it?

Thank you.

[jellyfangs]

Is the server available online? Is the callback URL correct?

[kiranvm]

Hi Jerry, I am facing similar issue, Call back verification failed. but message is bad gateway

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway

The heroku deployment URL is accessible. Please share if you have any suggestions.

Thank you.

[kiranvm]

Please ignore the previous comment. I named Procfile as procfile

[sarnshreya]

I am facing this issue too.It shows The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 503; HTTP Message = Service Unavailable And the heroku link seems to be broken with this message-

An error occurred in the application and your page could not be served. Please try again in a few moments. If you are the application owner, check your logs for details.

[sarnshreya]

The heroku log shows-the app crashed

2016-07-28T11:41:39.150069+00:00 app[web.1]: at Function.Module._load (module.js:314:12)

2016-07-28T11:41:39.150070+00:00 app[web.1]: at startup (node.js:148:18)

2016-07-28T11:41:39.225296+00:00 heroku[web.1]: Process exited with status 1

2016-07-28T13:24:05.344533+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/?hub.mode=subscribe&hub.challenge=432092788&hub.verify_token=fb_bot" host=fb-121071064.herokuapp.com request_id=77443caa-168e-4428-9f43-9611d8230b9e fwd="66.220.146.21" dyno= connect= service= status=503 bytes=

2016-07-28T13:36:37.043656+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=fb-121071064.herokuapp.com request_id=03ed313b-0930-4e12-8303-1af63446a429 fwd="103.204.168.142" dyno= connect= service= status=503 bytes=

2016-07-28T13:36:37.942331+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=fb-121071064.herokuapp.com request_id=ca3b7c09-e44c-4fbb-97e1-156393b9d483 fwd="103.204.168.142" dyno= connect= service= status=503 bytes=

2016-07-28T13:40:46.783907+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=fb-121071064.herokuapp.com request_id=928318db-97b2-44c3-ae68-0a5cb20c692f fwd="103.204.168.142" dyno= connect= service= status=503 bytes=

[ghost]

Having the same problem.

It won't validate, and the heroku logs show it crashed!

[ghost]

I tried "heroku open" in the terminal, and my app could not be opened in the browser - I received an Application Error. I think the problem lies in that the Webhook endpoint isn't working correctly.

[hellohuman]

Had the same problem, even though there was a Procfile it was giving me npm start errors. Adding:

"start": "node index.js"

To the package.json file fixed it for me 😄

[chipcerio]

I fixed this by adding the node_modules/ in the .gitignore

[socioboard]

getting same error for .net core mvc while adding the cal back url in webhooks The URL couldn't be validated. Callback verification failed with the following errors: curl_errno = 56; curl_error = Received HTTP code 502 from proxy after CONNECT; HTTP Status Code = 502; HTTP Message = Private address

[Avinash1992]

getting same error for .net core mvc while adding the cal back url in webhooks The URL couldn't be validated. Callback verification failed with the following errors: curl_errno = 56; curl_error = Received HTTP code 502 from proxy after CONNECT; HTTP Status Code = 502; HTTP Message = Private address

[JShilpa]

I solved this issue by setting my Wit Token on the command line. heroku config:set WIT_TOKEN='your_token_here'. You can find your Wit token at Settings > Server Access Token. Hope this helps.

[lornatumuhairwe]

Faced the same issue but I noticed that you should set the VERIFY_TOKEN using heroku config:add VERIFY_TOKEN=your_verification_token_here in your terminal before verifying your webhook on the developer facebook page.

[Chanyadav]

I am using ngrok to webhook facebook with other application but i am facing this error when i try adding to the URL " The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway".

Please help me in fixing this.

[babutritran]

My solution is to restart the server or close all wed before paste URL callback

[19sriram]

restarted server but couldn't come up with a solution. Still the app is showing crashed and facebook is showing URL cannot be validated..

[Chanyadav]

Hey, Since I had set up my server on local . I used NGROK to expose my local to global . Try using this to webhook with FB.

Thank you!

On Wed, Apr 26, 2017 at 9:50 AM, Sriram notifications@github.com wrote:

restarted server but couldn't come up with a solution. Still the app is showing crashed and facebook is showing URL cannot be validated..

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/jw84/messenger-bot-tutorial/issues/15#issuecomment-297233744, or mute the thread https://github.com/notifications/unsubscribe-auth/AYWFqGrOwhXiBhZRZCr7Cpt9Ld2vlMlMks5rzsX4gaJpZM4IlbO2 .

[kamesh231]

I was hitting with error 403. The issue was with Config Vars declared in Heroku APP. I had a typo in the name used. The variable name mentioned was 'VERIFICATION_TOKEN' where as in my callback code I was referring it as 'VERIFY_TOKEN'. After fixing this the issue was resolved

[SammyMwanyasi]

stll facing the problem? in the VERIFY_TOKEN write a name your choice eg mytoken then on heroku go to settings then select reveal config var add Verify_TOKEN and value mytoken

[ABinfinity]

i tried heroku open command and my web page opens perfectly, i also add verify_token on heroku but when i setup webhook it shows following error:"The url could not be validated.Callback verification failed with following errors:HTTP status code = 500,HTTP Message= Internal Server error"..please tell me what to do to fix this error.

[SammyMwanyasi]

Internal Server Error means VERIFY_TOKEN and other User Parameters offered by Facebook are not properly configured

[manudguru]

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 500; HTTP Message = Internal Server Error

I m having this issue i have a wordpress website .

Plz help

[abhijeetdhawas]

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 402; HTTP Message = Payment Required

i am having this issue

Please help

[tu20011022]

Having same issue T T

Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway

I already set the VERIFY_TOKEN, and it still not work.

Please

[Hateefa]

I am having the same issue:

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway

Even tried to add /webhook/ at the end but it doesn't work.

[buidairadio]

I am having the same issue: The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway :(

[Beezai]

Hi Jerry, I am facing similar issue, Call back verification failed. but message is bad gateway

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway

The heroku deployment URL is accessible. Please share if you have any suggestions.

I am having this problem, can anyone help me'

[Israr-Mughal]

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 502; HTTP Message = Bad Gateway

Even tried to add /webhook/ at the end but it doesn't work.

Any suggestion to solve this error.

[Beezai]

If you have all token set up in heroku and verify token in fb messanger app and again facing same issue then do this.

From requirement.txt file Delete the line : setuptool and update the file. Your problem should be solved.

[ysernah]

Tuve el mismo problema era porque no instale las dependecias comando npm i

[AnjanaDhakal]

The URL couldn't be validated. Callback verification failed with the following errors: curl_errno = 28; curl_error = Operation timed out after 6000 milliseconds with 0 bytes received; HTTP Status Code = 200; HTTP Message = Connection established

work fine in glitch Any suggestion to solve this error. Thank you in advance